The JELD-WEN Premium Horizontal Sliding Vinyl Window, 60 in. x 36 in., White, with LowE Glass and Screen is Energy Star qualified to help reduce heating and cooling costs. The LowE rating means cooler summers and warmer winters. Its multi-chamber designed welded frame has been constructed for long-lasting use and enjoyment and its whitewash finish complements most styles of homes. Installation hardware is included for convenience.